Cita APA (7th ed.)

Baker, C. E. (1989). Human liberty and freedom of speech. Oxford University Press.

Cita Chicago (17th ed.)

Baker, C. Edwin. Human Liberty and Freedom of Speech. New York: Oxford University Press, 1989.

Cita MLA (9th ed.)

Baker, C. Edwin. Human Liberty and Freedom of Speech. Oxford University Press, 1989.